Abstract: An optical coupler system having two optical elements mounted adjacent one another with mutually confronting surfaces, and an optically clear elastomer interposed therebetween in abutment with the confronting surfaces. A method of assembling an optical coupler system is also disclosed comprising the steps of providing an optically clear elastomer, positioning an end of an optical fiber adjacent the elastomer, pressing the optical fiber end against the elastomer to form an elastomer surface depression from which the optical fiber projects, and holding the optical fiber end in place in pressure contact against the elastomer within the elastomer surface depression.